You really need to have a mechanic inspect your car for these problems. IF this 'were' a parts store, your parts discription is is not accurate enough to know what you need! Unless it has a manual transmission, there is no "pilot bushing", and even if it is a stick shift, the pilot bushing can not leak anything! The thrust arm, with a torn boot, i assume is the inner tie rod but cannot be sure. Just have it checked out before buying parts it dosen't have or need.